theory
I think the images are in 2-dimensional flow,so they'd be a little desceptive for 3-D.
A fellow at Bonneville in 1990 was attempting such a thing by attaching a sphere-on-a-stick ahead of a streamliner,and then attempting to draft behind it's wake.
I was given to understand that the fellow had just received a graduate degree in aeronautical engineering from Cal-Tech,or somewhere like it,and that this "technology" had been the basis for his Master's Thesis.
I was running my own car and didn't have time to visit with the fellow.It would have been interesting to hear about it all.
As far as I know,he did not set a LSR with the setup.
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